Re: [Perfparse-users] Prune performance fata on graph presentation

[Ben C. <bcl...@pe...>]

Paulo,

Thanks for the feedback.  Large time range graphs are in need of work.

I echo Yves comments about how to discard data and still get what you 
need.  For example, if you take only 1 in 10 points, you may miss some 
vital spike in the graph.

What is more important to you, to look good or be accurate?

We have an option we are going to implement soon where by we store 
summary data.  This should look good and be accurate.

For instance a weeks data will be stored as a single value.  Or what 
ever time period you like.  Each time period would be represented by 
storage of the average, max, min and standard deviation of that time period.

On the graph you would select either the full data, or a channel of 
summary data.

Would this be an answer for you?

This data is populated when the data is first stored.  Therefore no 
extra tools are needed and the graph should be a lot faster, not slower.

I have been trying to work on a new database format which is smaller and 
faster for full data.  But this is going slowly.  Would you and other 
members of this list prefer if we get the summary data working first?

Regards,

Ben.




Paulo Afonso Graner Fessel wrote:

> Hello, Ben.
>  
> We have noticed that the graphs for PerfParse don't look good when we 
> take into account extended periods of time - for example, when we make 
> graphs that cover months of collected data. Thus, I think it would be 
> interesting implement these features:
>  
> 
>     * Let the user specify how many data points he wants in order to
>       graph a metric;
>     * Make PerfParse calculate automatically how many data points are
>       neccessary to make a graph that is both precise and looks good;
>     * Allow export of metrics to CSV files, so they can be treated
>       outside of PerfParse using software like LabPlot or OpenOffice
>       Spreadsheet.
> 
> I have other suggestions that are related to user interface, but first I 
> will take a look on the PHP interface for PerfParse. I pretend to 
> install a development server tomorrow to finally be able to implement 
> 0.104 with MySQL 4.1.
>  
> []'s
> Paulo
>  
> *Paulo Afonso Graner Fessel*
> /Administrador de Ambiente e Sistemas UNIX/
> pau...@pr... <mailto:pau...@pr...>
> OWT
> Fone: +55 (11) 3038-6554
> Fax: +55 (11) 3038-6508
> http://www.primesys.com.br <http://www.primesys.com.br/>
>  
>  
>  


-- 
Ben Clewett  bcl...@pe...
PerfParse    http://www.perfparse.org
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